US6041783A - Integrated activity sensor - Google Patents

Integrated activity sensor Download PDF

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Publication number
US6041783A
US6041783A US08/471,582 US47158295A US6041783A US 6041783 A US6041783 A US 6041783A US 47158295 A US47158295 A US 47158295A US 6041783 A US6041783 A US 6041783A
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Prior art keywords
patient
sensor
cable
motion transducer
comprises
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Expired - Fee Related
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US08/471,582
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Roger A. Gruenke
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Natus Medical Inc
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Nellcor Puritan Bennett LLC
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Assigned to NELLCOR PURITAN BENNETT INCORPORATED reassignment NELLCOR PURITAN BENNETT INCORPORATED RECORD TO CORRECT THE ASSIGNEE ON A DOCUMENT PREVIOUSLY RECORDED ON REEL 7687, FRAME 059. Assignors: GRUENKE, ROGER A.
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Assigned to EMBLA SYSTEMS, INC. reassignment EMBLA SYSTEMS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NELLCOR PURITAN BENNETT LLC
Assigned to EMBLA SYSTEMS, LLC reassignment EMBLA SYSTEMS, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MYCARDIO, LLC
Assigned to MYCARDIO, LLC reassignment MYCARDIO, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EMBLA SYSTEMS, INC.
Assigned to NATUS MEDICAL INCORPORATED reassignment NATUS MEDICAL INCORPORATED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EMBLA SYSTEMS, LLC
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813Specially adapted to be attached to a specific body part
    • A61B5/6825Hand
    • A61B5/6826Finger
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/683Means for maintaining contact with the body
    • A61B5/6838Clamps or clips
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/72Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7203Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • A61B5/7207Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts
    • A61B5/721Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts using a separate sensor to detect motion or using motion information derived from signals other than the physiological signal to be measured

Abstract

A motion transducer is embedded in a section of cable interconnecting a primary medical sensor with associated electronics. By affixing the section containing the transducer to a portion of a patient's anatomy, information relating to the parameter of primary concern as well as the patient's activity can be gathered without the complexity normally associated with instrumenting a patient for the acquisition of such data.

Description

BACKGROUND OF THE INVENTION

The present invention generally relates to medical sensors and more particularly pertains to sensors that generate data indicative of a patient's movements or activity.

Patients are routinely monitored with respect to certain parameters that may be affected by the patient's activity. The effect may be the result of a physiological change resulting from such activity, a variation in the sensor/patient interface or some alteration of the signal after its generation and during transmission to the related instrumentation. It may therefore be most beneficial to have a record of the patient's activity to assist in interpreting data collected with respect to the parameter of interest. "Motion artifacts" can thereby be quickly identified, as can the data that is generated during periods of activity and periods of inactivity.

In testing patients for sleep disordered breathing and other sleep disorders it is frequently desirable to determine whether the patient is actually asleep. An EEG signal would of course readily facilitate a sleep-awake determination but such equipment is not always available. Alternatively, it has been found that a motion-detecting device fastened about the wrist area is quite an effective substitute as activity of the hand/wrist/arm is a fairly reliable indication of being awake.

Motion transducers for monitoring patient activity typically employ piezo-film material which generates an electrical signal when mechanically disturbed. Such material has heretofore been incorporated in for example a bracelet from which electrical leads extend to instrumentation where the generated signals are processed and recorded or otherwise made available for analysis.

Disadvantages associated with previously used activity sensors are inherent in the resulting multiplicity of the various sensors and wires extending from the "instrumented" patient. The complexity of such an array not only complicates the tasks of medical personnel but also encumbers the patient. Furthermore, some patients fear the presence of and the attachment to the various devices. As a result, it would be most desirable to reduce the apparent complexity of monitoring systems without sacrificing the quality and quantity of information gathered thereby.

SUMMARY OF THE INVENTION

The present invention provides a means for reducing the apparent complexity of the sensors and wiring array used in instrumenting a patient. More particularly, this is achieved by incorporating a motion transducer within a cable that interconnects any of a variety of sensors to instrumentation.

In treating certain sleep disorders, it may be desirable to simultaneously gather information relating to the blood oxygen saturation level as well as the patient's activity. An oximeter probe attached to the patient's finger necessarily has a cable extending therefrom that is typically routed along the hand and arm to the torso and on to the instrumentation. By embedding piezo-film in the cable in the area adjacent the wrist and routing the leads that extend therefrom through the same cable, a substantially simplified visual appearance results. The cable is secured to the wrist with tape or elastic bands to ensure that the slightest movement of the wrist causes a signal to be generated.

The present invention is adaptable to many other sensor combinations. In each iteration, the motion detector is incorporated in the cable interconnecting a primary sensor with the related instrumentation. The location of the piezo-film is selected to ensure its positioning adjacent to the body part the motion of which is of interest.

These and other features and advantages of the present invention will become apparent from the following detailed description of a preferred embodiment which, taken in conjunction with the accompanying drawings, illustrates by way of example the principles of the invention.

BRIEF DESCRIPTION OF THE DRAWING

FIG. 1 is semi-schematic representation showing the integrated sensor of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The present invention provides for the consolidation of an activity sensor with a primary medical sensor used to measure a particular medical parameter. The primary sensor is attached to the appropriate portion of a patient's anatomy, while a motion transducer is incorporated in the cable interconnecting the primary sensor with the related instrumentation. Information indicative of the patient's activity is thereby available for interpretation of the primary sensor data without the need to attach a separate sensor or route additional wiring.

The FIGURE illustrates a motion transducer incorporated in a cable extending from an oximeter finger probe. Such oximeters are well known in the art, and are operative to project beams of light through the finger and measure the intensity of the transmitted radiation. The wavelength of one of the beams of light is selected so as to be absorbable only by oxygen carrying hemoglobin while the second beam of light is not absorbed thereby. As a result, the relative intensities of the two beams provide an indication of the oxygen saturation level. The signal is however easily affected by any movement of the probe relative to the finger as different blood vessels are thereby caused to come under scrutiny. In order to be able to distinguish a real change in blood oxygen from a motion artifact it is therefore necessary to monitor the patient's movements.

The FIGURE shows a preferred embodiment of the present invention wherein the integrated system 12 includes an oximeter finger probe 14 that is interconnected via cable 16 to instrumentation 18 that amplifies, processes, displays or records the data. At a location along the cable which would be positioned adjacent the wrist area upon routing the cable from the patient's finger, along the arm to the torso and on to instrumentation 18, a section of piezo film 20 is wrapped about a section the cable. The piezo film 20 forms a cylindrical shape about a central axis of the cable 16. A preferred piezo film material is poly-vinylidine fluoride (PVDF). Two leads 23 extend therefrom and are routed into the cable at access port 25 to run the length of the cable to instrumentation 18. An outer sheath 22 covers the sensor 20 and wires 23 to provide a "single cable" appearance. The sheath may have a contrasting color or stenciling to demark the location of the sensor. It is preferred that the processing electronics for the motion transducer be incorporated in the same case that houses the oximeter electronics to further simplify the instrumentation.

In operation the oximeter finger probe 14 is clipped on to the patient's finger and the cable 16 is routed up along the arm to torso from where it connects to the instrumentation 18. The section of cable containing the motion transducer, which is axially distant from the oximeter finger probe 14, is positioned over the patient's wrist and adhesive tape or elastic bands are used on either side of the transducer containing section to affix the cable to the patient. Any relative movement across the wrist causes that section of cable to move or flex to mechanically disturb the piezo film, which causes an electric signal to be generated that is transmitted to electronics 18 for processing.

While a particular form of the invention has been illustrated and described, it will also be apparent to those skilled in the art that various modifications can be made without departing from the spirit and scope of the invention. More particularly, the activity sensor may be incorporated in any cable extending from the patient and consequently, integration with any number of medical sensors is possible. Additionally, any portion of the patient's body may be monitored for movement and any type of motion transducer may be used that is capable of being incorporated in the cabling. Accordingly, it is not intended that the invention be limited except by the appended claims.

Claims (20)

What is claimed is:
1. An integrated sensor for monitoring a patient's activity, comprising:
a primary medical sensor attachable to a patient's body;
a cable interconnecting said primary sensor with associated electronics; and
a motion transducer embedded in said cable at an axial distance from the primary medical sensor.
2. An integrated sensor for monitoring a patient's activity, comprising:
a primary medical sensor attachable to a patient's body;
a cable interconnecting said primary sensor with associated electronics; and
a motion transducer embedded in said cable, wherein said motion transducer comprises piezo-film wrapped into a cylindrical form about a central axis of the cable and enclosed in an outer sheath.
3. The integrated sensor of claim 2 wherein said piezo-film material comprises PVDF.
4. The integrated sensor of claim 2 wherein said piezo-film has electrical leads extending therefrom that are routed into an interior of said cable to interconnect with associated electronics.
5. The integrated sensor of claim 1 wherein said primary sensor comprises an oximeter finger probe and said motion transducer is embedded in said cable at a location normally adjacent a preselected joint of said patient.
6. The integrated sensor of claim 5 wherein said preselected joint comprises a wrist of said patient.
7. The integrated sensor of claim 5 wherein said motion transducer comprises piezo-film wrapped into a cylindrical form about a central axis of the cable and enclosed in an outer sheath.
8. The integrated sensor of claim 7 wherein said piezo-film comprises PVDF.
9. A method for monitoring a patient's activity, comprising the steps of:
attaching a medical sensor to said patient wherein said sensor is interconnected to electronics via a cable;
incorporating a motion transducer within a preselected portion of said cable at an axial distance from the medical sensor; and
affixing said preselected portion of said cable to a preselected area of said patient, whereby movement of said area is indicative of patient activity.
10. The method of claim 9 further comprising the step of routing leads extending from said motion transducer through said cable to electronics capable of processing any signals generated thereby.
11. The method of claim 9 wherein the preselected area of said patient comprises a joint.
12. The method of claim 11 wherein the joint comprises a wrist of said patient.
13. The method of claim 9 wherein the medical sensor comprises an oximeter finger probe, the motion transducer comprises piezo film, and the preselected area of said patient comprises a wrist joint of said patient.
14. An integrated sensor for monitoring a patient's activity, comprising:
a primary medical sensor attachable to a patient's body;
a cable interconnecting said primary sensor with associated electronics; and
a motion transducer positioned along the cable between the primary sensor and the associated electronics, said motion transducer being positioned at an axial distance from the primary medical sensor.
15. The integrated sensor of claim 14, wherein the primary medical sensor comprises an oximeter finger probe, and the motion transducer is positioned on the cable at an axial distance sufficient to permit the motion transducer to be positioned adjacent a wrist area of the patient while the oximeter finger probe is clipped to a finger of the patient.
16. The integrated sensor of claim 14, wherein the motion transducer comprises piezo film.
17. The integrated sensor of claim 16, wherein the cable has a central axis, and the piezo film is wrapped into a generally cylindrical shape about the cable axis.
18. The integrated sensor of claim 17, further comprising an outer sheath enclosing the piezo film.
19. The integrated sensor of claim 18, further comprising indicia on the outer sheath denoting the location of the motion transducer.
20. The integrated sensor of claim 16, wherein the piezo film comprises PVDF.
US08/471,582 1995-06-07 1995-06-07 Integrated activity sensor Expired - Fee Related US6041783A (en)

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6526834B1 (en) * 2000-08-23 2003-03-04 Measurement Specialties, Incorporated Piezoelectric sensor
US20100160798A1 (en) * 2007-06-12 2010-06-24 Sotera Wireless, Inc. BODY-WORN SYSTEM FOR MEASURING CONTINUOUS NON-INVASIVE BLOOD PRESSURE (cNIBP)
US20100160794A1 (en) * 2007-06-12 2010-06-24 Sotera Wireless, Inc. BODY-WORN SYSTEM FOR MEASURING CONTINUOUS NON-INVASIVE BLOOD PRESSURE (cNIBP)
US20100298654A1 (en) * 2009-05-20 2010-11-25 Triage Wireless, Inc. Blood pressure-monitoring system with alarm/alert system that accounts for patient motion
US20100298656A1 (en) * 2009-05-20 2010-11-25 Triage Wireless, Inc. Alarm system that processes both motion and vital signs using specific heuristic rules and thresholds
US20100324384A1 (en) * 2009-06-17 2010-12-23 Jim Moon Body-worn pulse oximeter
US20110066044A1 (en) * 2009-09-15 2011-03-17 Jim Moon Body-worn vital sign monitor
US20110066038A1 (en) * 2009-09-14 2011-03-17 Matt Banet Body-worn monitor for measuring respiration rate
US20110066050A1 (en) * 2009-09-15 2011-03-17 Jim Moon Body-worn vital sign monitor
US20110066010A1 (en) * 2009-09-15 2011-03-17 Jim Moon Body-worn vital sign monitor
US20110066009A1 (en) * 2009-09-15 2011-03-17 Jim Moon Body-worn vital sign monitor
US20110066051A1 (en) * 2009-09-15 2011-03-17 Jim Moon Body-worn vital sign monitor
US20110066045A1 (en) * 2009-09-15 2011-03-17 Jim Moon Body-worn vital sign monitor
US20110224507A1 (en) * 2010-03-10 2011-09-15 Sotera Wireless, Inc. Body-worn vital sign monitor
US8747330B2 (en) 2010-04-19 2014-06-10 Sotera Wireless, Inc. Body-worn monitor for measuring respiratory rate
US8888700B2 (en) 2010-04-19 2014-11-18 Sotera Wireless, Inc. Body-worn monitor for measuring respiratory rate
US8979765B2 (en) 2010-04-19 2015-03-17 Sotera Wireless, Inc. Body-worn monitor for measuring respiratory rate
US9173593B2 (en) 2010-04-19 2015-11-03 Sotera Wireless, Inc. Body-worn monitor for measuring respiratory rate
US9173594B2 (en) 2010-04-19 2015-11-03 Sotera Wireless, Inc. Body-worn monitor for measuring respiratory rate
US9339209B2 (en) 2010-04-19 2016-05-17 Sotera Wireless, Inc. Body-worn monitor for measuring respiratory rate
US9364158B2 (en) 2010-12-28 2016-06-14 Sotera Wirless, Inc. Body-worn system for continuous, noninvasive measurement of cardiac output, stroke volume, cardiac power, and blood pressure
US9439574B2 (en) 2011-02-18 2016-09-13 Sotera Wireless, Inc. Modular wrist-worn processor for patient monitoring
US9538949B2 (en) 2010-09-28 2017-01-10 Masimo Corporation Depth of consciousness monitor including oximeter
US10154815B2 (en) 2014-10-07 2018-12-18 Masimo Corporation Modular physiological sensors
US10357187B2 (en) 2011-02-18 2019-07-23 Sotera Wireless, Inc. Optical sensor for measuring physiological properties

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443730A (en) * 1978-11-15 1984-04-17 Mitsubishi Petrochemical Co., Ltd. Biological piezoelectric transducer device for the living body
US4509527A (en) * 1983-04-08 1985-04-09 Timex Medical Products Corporation Cardio-respiration transducer
US4802485A (en) * 1987-09-02 1989-02-07 Sentel Technologies, Inc. Sleep apnea monitor
US4924871A (en) * 1988-02-26 1990-05-15 Colin Electronics Co., Ltd. Motion artifact detection for continuous blood pressure monitor transducer
US5055671A (en) * 1990-10-03 1991-10-08 Spacelabs, Inc. Apparatus for detecting transducer movement using a first and second light detector
US5311875A (en) * 1992-11-17 1994-05-17 Peter Stasz Breath sensing apparatus
US5313940A (en) * 1991-05-15 1994-05-24 Nihon Kohden Corporation Photo-electric pulse wave measuring probe
US5406952A (en) * 1993-02-11 1995-04-18 Biosyss Corporation Blood pressure monitoring system
US5494043A (en) * 1993-05-04 1996-02-27 Vital Insite, Inc. Arterial sensor

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443730A (en) * 1978-11-15 1984-04-17 Mitsubishi Petrochemical Co., Ltd. Biological piezoelectric transducer device for the living body
US4509527A (en) * 1983-04-08 1985-04-09 Timex Medical Products Corporation Cardio-respiration transducer
US4802485A (en) * 1987-09-02 1989-02-07 Sentel Technologies, Inc. Sleep apnea monitor
US4924871A (en) * 1988-02-26 1990-05-15 Colin Electronics Co., Ltd. Motion artifact detection for continuous blood pressure monitor transducer
US5055671A (en) * 1990-10-03 1991-10-08 Spacelabs, Inc. Apparatus for detecting transducer movement using a first and second light detector
US5313940A (en) * 1991-05-15 1994-05-24 Nihon Kohden Corporation Photo-electric pulse wave measuring probe
US5311875A (en) * 1992-11-17 1994-05-17 Peter Stasz Breath sensing apparatus
US5406952A (en) * 1993-02-11 1995-04-18 Biosyss Corporation Blood pressure monitoring system
US5494043A (en) * 1993-05-04 1996-02-27 Vital Insite, Inc. Arterial sensor

Cited By (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6526834B1 (en) * 2000-08-23 2003-03-04 Measurement Specialties, Incorporated Piezoelectric sensor
US9215986B2 (en) 2007-06-12 2015-12-22 Sotera Wireless, Inc. Body-worn system for measuring continuous non-invasive blood pressure (cNIBP)
US20100160798A1 (en) * 2007-06-12 2010-06-24 Sotera Wireless, Inc. BODY-WORN SYSTEM FOR MEASURING CONTINUOUS NON-INVASIVE BLOOD PRESSURE (cNIBP)
US20100160794A1 (en) * 2007-06-12 2010-06-24 Sotera Wireless, Inc. BODY-WORN SYSTEM FOR MEASURING CONTINUOUS NON-INVASIVE BLOOD PRESSURE (cNIBP)
US20100160795A1 (en) * 2007-06-12 2010-06-24 Sotera Wireless, Inc. BODY-WORN SYSTEM FOR MEASURING CONTINUOUS NON-INVASIVE BLOOD PRESSURE (cNIBP)
US20100168589A1 (en) * 2007-06-12 2010-07-01 Sotera Wireless, Inc. BODY-WORN SYSTEM FOR MEASURING CONTINUOUS NON-INVASIVE BLOOD PRESSURE (cNIBP)
US9161700B2 (en) 2007-06-12 2015-10-20 Sotera Wireless, Inc. Body-worn system for measuring continuous non-invasive blood pressure (cNIBP)
US8808188B2 (en) 2007-06-12 2014-08-19 Sotera Wireless, Inc. Body-worn system for measuring continuous non-invasive blood pressure (cNIBP)
US8602997B2 (en) 2007-06-12 2013-12-10 Sotera Wireless, Inc. Body-worn system for measuring continuous non-invasive blood pressure (cNIBP)
US9668656B2 (en) 2007-06-12 2017-06-06 Sotera Wireless, Inc. Body-worn system for measuring continuous non-invasive blood pressure (cNIBP)
US20100160796A1 (en) * 2007-06-12 2010-06-24 Sotera Wireless, Inc. BODY-WORN SYSTEM FOR MEASURING CONTINUOUS NON-INVASIVE BLOOD PRESSURE (cNIBP)
US8740802B2 (en) 2007-06-12 2014-06-03 Sotera Wireless, Inc. Body-worn system for measuring continuous non-invasive blood pressure (cNIBP)
US20100298661A1 (en) * 2009-05-20 2010-11-25 Triage Wireless, Inc. Method for generating alarms/alerts based on a patient's posture and vital signs
US20100298659A1 (en) * 2009-05-20 2010-11-25 Triage Wireless, Inc. Body-worn system for continuously monitoring a patient's bp, hr, spo2, rr, temperature, and motion; also describes specific monitors for apnea, asy, vtac, vfib, and 'bed sore' index
US20100298650A1 (en) * 2009-05-20 2010-11-25 Triage Wireless, Inc. Vital sign monitoring system featuring 3 accelerometers
US20100298660A1 (en) * 2009-05-20 2010-11-25 Triage Wireless, Inc. Body-worn device and associated system for alarms/alerts based on vital signs and motion; also describes specific monitors that include barcode scanner and different user interfaces for nurse, patient, etc.
US8956293B2 (en) 2009-05-20 2015-02-17 Sotera Wireless, Inc. Graphical ‘mapping system’ for continuously monitoring a patient's vital signs, motion, and location
US20100298658A1 (en) * 2009-05-20 2010-11-25 Triage Wireless, Inc. Graphical 'mapping system' for continuously monitoring a patient's vital signs, motion, and location
US8672854B2 (en) 2009-05-20 2014-03-18 Sotera Wireless, Inc. System for calibrating a PTT-based blood pressure measurement using arm height
US8475370B2 (en) 2009-05-20 2013-07-02 Sotera Wireless, Inc. Method for measuring patient motion, activity level, and posture along with PTT-based blood pressure
US8594776B2 (en) 2009-05-20 2013-11-26 Sotera Wireless, Inc. Alarm system that processes both motion and vital signs using specific heuristic rules and thresholds
US20100298652A1 (en) * 2009-05-20 2010-11-25 Triage Wireless, Inc. System for calibrating a ptt-based blood pressure measurement using arm height
US20100298651A1 (en) * 2009-05-20 2010-11-25 Triage Wireless, Inc. Cable system for generating signals for detecting motion and measuring vital signs
US8738118B2 (en) 2009-05-20 2014-05-27 Sotera Wireless, Inc. Cable system for generating signals for detecting motion and measuring vital signs
US20100298653A1 (en) * 2009-05-20 2010-11-25 Triage Wireless, Inc. Method for measuring patient motion, activity level, and posture along with ptt-based blood pressure
US20100298655A1 (en) * 2009-05-20 2010-11-25 Triage Wireless , Inc. Method for measuring patient posture and vital signs
US20100298657A1 (en) * 2009-05-20 2010-11-25 Triage Wireless, Inc. Method for continuously monitoring a patient using a body-worn device and associated system for alarms/alerts
US8909330B2 (en) 2009-05-20 2014-12-09 Sotera Wireless, Inc. Body-worn device and associated system for alarms/alerts based on vital signs and motion
US8180440B2 (en) 2009-05-20 2012-05-15 Sotera Wireless, Inc. Alarm system that processes both motion and vital signs using specific heuristic rules and thresholds
US20100298656A1 (en) * 2009-05-20 2010-11-25 Triage Wireless, Inc. Alarm system that processes both motion and vital signs using specific heuristic rules and thresholds
US20100298654A1 (en) * 2009-05-20 2010-11-25 Triage Wireless, Inc. Blood pressure-monitoring system with alarm/alert system that accounts for patient motion
US8956294B2 (en) 2009-05-20 2015-02-17 Sotera Wireless, Inc. Body-worn system for continuously monitoring a patients BP, HR, SpO2, RR, temperature, and motion; also describes specific monitors for apnea, ASY, VTAC, VFIB, and ‘bed sore’ index
US9492092B2 (en) 2009-05-20 2016-11-15 Sotera Wireless, Inc. Method for continuously monitoring a patient using a body-worn device and associated system for alarms/alerts
US8200321B2 (en) 2009-05-20 2012-06-12 Sotera Wireless, Inc. Method for measuring patient posture and vital signs
US10085657B2 (en) 2009-06-17 2018-10-02 Sotera Wireless, Inc. Body-worn pulse oximeter
US9775529B2 (en) 2009-06-17 2017-10-03 Sotera Wireless, Inc. Body-worn pulse oximeter
US8554297B2 (en) 2009-06-17 2013-10-08 Sotera Wireless, Inc. Body-worn pulse oximeter
US9596999B2 (en) 2009-06-17 2017-03-21 Sotera Wireless, Inc. Body-worn pulse oximeter
US20100324385A1 (en) * 2009-06-17 2010-12-23 Jim Moon Body-worn pulse oximeter
US8437824B2 (en) 2009-06-17 2013-05-07 Sotera Wireless, Inc. Body-worn pulse oximeter
US20100324386A1 (en) * 2009-06-17 2010-12-23 Jim Moon Body-worn pulse oximeter
US20100324384A1 (en) * 2009-06-17 2010-12-23 Jim Moon Body-worn pulse oximeter
US20110066039A1 (en) * 2009-09-14 2011-03-17 Matt Banet Body-worn monitor for measuring respiration rate
US20110066062A1 (en) * 2009-09-14 2011-03-17 Matt Banet Body-worn monitor for measuring respiration rate
US20110066007A1 (en) * 2009-09-14 2011-03-17 Matt Banet Body-worn monitor for measuring respiration rate
US10123722B2 (en) 2009-09-14 2018-11-13 Sotera Wireless, Inc. Body-worn monitor for measuring respiration rate
US8622922B2 (en) 2009-09-14 2014-01-07 Sotera Wireless, Inc. Body-worn monitor for measuring respiration rate
US8545417B2 (en) 2009-09-14 2013-10-01 Sotera Wireless, Inc. Body-worn monitor for measuring respiration rate
US20110066008A1 (en) * 2009-09-14 2011-03-17 Matt Banet Body-worn monitor for measuring respiration rate
US20110066038A1 (en) * 2009-09-14 2011-03-17 Matt Banet Body-worn monitor for measuring respiration rate
US8740807B2 (en) 2009-09-14 2014-06-03 Sotera Wireless, Inc. Body-worn monitor for measuring respiration rate
US8364250B2 (en) 2009-09-15 2013-01-29 Sotera Wireless, Inc. Body-worn vital sign monitor
US20110066009A1 (en) * 2009-09-15 2011-03-17 Jim Moon Body-worn vital sign monitor
US20110066045A1 (en) * 2009-09-15 2011-03-17 Jim Moon Body-worn vital sign monitor
US20110066051A1 (en) * 2009-09-15 2011-03-17 Jim Moon Body-worn vital sign monitor
US20110066010A1 (en) * 2009-09-15 2011-03-17 Jim Moon Body-worn vital sign monitor
US20110066050A1 (en) * 2009-09-15 2011-03-17 Jim Moon Body-worn vital sign monitor
US20110066044A1 (en) * 2009-09-15 2011-03-17 Jim Moon Body-worn vital sign monitor
US8527038B2 (en) 2009-09-15 2013-09-03 Sotera Wireless, Inc. Body-worn vital sign monitor
US8321004B2 (en) 2009-09-15 2012-11-27 Sotera Wireless, Inc. Body-worn vital sign monitor
US10213159B2 (en) 2010-03-10 2019-02-26 Sotera Wireless, Inc. Body-worn vital sign monitor
US20110224557A1 (en) * 2010-03-10 2011-09-15 Sotera Wireless, Inc. Body-worn vital sign monitor
US8727977B2 (en) 2010-03-10 2014-05-20 Sotera Wireless, Inc. Body-worn vital sign monitor
US20110224499A1 (en) * 2010-03-10 2011-09-15 Sotera Wireless, Inc. Body-worn vital sign monitor
US8591411B2 (en) 2010-03-10 2013-11-26 Sotera Wireless, Inc. Body-worn vital sign monitor
US10278645B2 (en) 2010-03-10 2019-05-07 Sotera Wireless, Inc. Body-worn vital sign monitor
US20110224498A1 (en) * 2010-03-10 2011-09-15 Sotera Wireless, Inc. Body-worn vital sign monitor
US20110224564A1 (en) * 2010-03-10 2011-09-15 Sotera Wireless, Inc. Body-worn vital sign monitor
US20110224556A1 (en) * 2010-03-10 2011-09-15 Sotera Wireless, Inc. Body-worn vital sign monitor
US20110224500A1 (en) * 2010-03-10 2011-09-15 Sotera Wireless, Inc. Body-worn vital sign monitor
US20110224507A1 (en) * 2010-03-10 2011-09-15 Sotera Wireless, Inc. Body-worn vital sign monitor
US20110224506A1 (en) * 2010-03-10 2011-09-15 Sotera Wireless, Inc. Body-worn vital sign monitor
US20110224508A1 (en) * 2010-03-10 2011-09-15 Sotera Wireless, Inc. Body-worn vital sign monitor
US8747330B2 (en) 2010-04-19 2014-06-10 Sotera Wireless, Inc. Body-worn monitor for measuring respiratory rate
US9173594B2 (en) 2010-04-19 2015-11-03 Sotera Wireless, Inc. Body-worn monitor for measuring respiratory rate
US8979765B2 (en) 2010-04-19 2015-03-17 Sotera Wireless, Inc. Body-worn monitor for measuring respiratory rate
US9173593B2 (en) 2010-04-19 2015-11-03 Sotera Wireless, Inc. Body-worn monitor for measuring respiratory rate
US8888700B2 (en) 2010-04-19 2014-11-18 Sotera Wireless, Inc. Body-worn monitor for measuring respiratory rate
US9339209B2 (en) 2010-04-19 2016-05-17 Sotera Wireless, Inc. Body-worn monitor for measuring respiratory rate
US9538949B2 (en) 2010-09-28 2017-01-10 Masimo Corporation Depth of consciousness monitor including oximeter
US9585577B2 (en) 2010-12-28 2017-03-07 Sotera Wireless, Inc. Body-worn system for continuous, noninvasive measurement of cardiac output, stroke volume, cardiac power, and blood pressure
US9380952B2 (en) 2010-12-28 2016-07-05 Sotera Wireless, Inc. Body-worn system for continuous, noninvasive measurement of cardiac output, stroke volume, cardiac power, and blood pressure
US9364158B2 (en) 2010-12-28 2016-06-14 Sotera Wirless, Inc. Body-worn system for continuous, noninvasive measurement of cardiac output, stroke volume, cardiac power, and blood pressure
US10357187B2 (en) 2011-02-18 2019-07-23 Sotera Wireless, Inc. Optical sensor for measuring physiological properties
US9439574B2 (en) 2011-02-18 2016-09-13 Sotera Wireless, Inc. Modular wrist-worn processor for patient monitoring
US10154815B2 (en) 2014-10-07 2018-12-18 Masimo Corporation Modular physiological sensors

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